CN113202231A - Concrete-filled steel tubular column capable of being used for smoke exhaust - Google Patents
Concrete-filled steel tubular column capable of being used for smoke exhaust Download PDFInfo
- Publication number
- CN113202231A CN113202231A CN202110477047.7A CN202110477047A CN113202231A CN 113202231 A CN113202231 A CN 113202231A CN 202110477047 A CN202110477047 A CN 202110477047A CN 113202231 A CN113202231 A CN 113202231A
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- CN
- China
- Prior art keywords
- smoke exhaust
- core
- pipe
- smoke
- outer steel
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/36—Columns; Pillars; Struts of materials not covered by groups E04C3/32 or E04C3/34; of a combination of two or more materials
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F17/00—Vertical ducts; Channels, e.g. for drainage
- E04F17/02—Vertical ducts; Channels, e.g. for drainage for carrying away waste gases, e.g. flue gases; Building elements specially designed therefor, e.g. shaped bricks or sets thereof
Abstract
A steel tube concrete column capable of being used for smoke exhaust comprises an outer steel tube, wherein a core smoke exhaust tube is arranged in the center of the inner portion of the outer steel tube, a plurality of support flange plates are connected between the core smoke exhaust tube and the outer steel tube, a plurality of smoke exhaust branch tubes are arranged on the support flange plates in parallel, one ends of the smoke exhaust branch tubes are communicated with the core smoke exhaust tube, a plurality of smoke exhaust holes are formed in the smoke exhaust branch tubes and the wall of the core smoke exhaust tube, thermoplastic plugs are arranged in the smoke exhaust holes, and interlayer concrete is filled in gaps between the outer steel tube and the core smoke exhaust tube; in case of fire, the thermoplastic plug in the smoke exhaust hole is firstly melted at high temperature, and concrete smoke dust enters the core smoke exhaust pipe through the smoke exhaust hole and the smoke exhaust branch pipe to achieve the smoke exhaust function; the smoke dust exhausting device can timely exhaust smoke dust in a fire disaster, improve the fire rescue difficulty, simultaneously improve the exposure condition of the traditional smoke exhausting device and the condition of large self weight of components, fully utilize the internal space occupancy rate, and have the advantages of reasonable structure, strong integrity, rigidity and bearing capacity, low cost and strong practicability.
Description
Technical Field
The invention belongs to the technical field of steel structure engineering, and particularly relates to a steel pipe concrete column capable of being used for smoke exhaust.
Background
Although the traditional steel pipe concrete column has better fire resistance, internal coarse aggregate, fine aggregate and mineral can be subjected to chemical reaction due to the initial defect of the concrete, so that a large amount of smoke and dust are generated to influence the fire rescue difficulty.
Conventional fume extraction methods often require large fume extractors to be installed, but such exposed fume extractors are aesthetically unpleasing and pose difficulties in floor installation and interior finishing.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide the concrete-filled steel tube column for smoke exhaust, wherein the core smoke exhaust pipe and the smoke exhaust branch pipe are arranged, holes are reserved in the core smoke exhaust pipe and the smoke exhaust branch pipe, and the thermoplastic plugs are matched, so that smoke dust can be exhausted in a fire disaster, the rescue difficulty in the fire disaster is improved, the exposed condition of a smoke exhaust device and the condition of large dead weight of components are also improved, and the concrete-filled steel tube column has the advantages of reasonable structure, strong integrity, rigidity and bearing capacity, low cost and strong practicability.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a steel core concrete column that can be used to discharge fume, includes outer steel pipe 1, 1 inside centre of outer steel pipe is provided with the core and discharges fume tub 2, and the core is discharged fume and is connected with polylith support flange board 3 between tub 2 and the outer steel pipe 1, and support flange board 3 goes up parallel arrangement has a plurality of branch pipes 4 of discharging fume, and 4 one ends of branch pipes 4 of discharging fume are linked together with core discharge fume tub 2, all are equipped with a plurality of exhaust holes 5 on branch pipe 4 of discharging fume and the 2 pipe walls of core discharge fume tub, are provided with thermoplasticity stopper 6 in the exhaust hole 5, and sandwich concrete 7 fills in the space between outer steel pipe 1 and core discharge fume tub 2.
The height of the outer steel pipe 1, the height of the core smoke exhaust pipe 2, the height of the support flange plate 3 are the same as the height of the floor.
The number of the plurality of support flange plates 3 is at least two.
The plurality of support flange plates 3 are radially and evenly distributed between the core smoke exhaust pipe 2 and the outer steel pipe 1.
The outer steel pipe 1, the core smoke exhaust pipe 2, the smoke exhaust branch pipes 4 and the support flange plates 3 are all made of hot-strength steel and have the thickness of 6-10 mm.
The standard compressive strength of the interlayer concrete 7 is 30-100 Mpa.
The melting point of the thermoplastic plug 6 is 350-.
The invention has the beneficial effects that:
the thermoplastic plug 6 is melted in a fire disaster, smoke and dust generated in the concrete are discharged to the core smoke exhaust pipe 2 through the smoke exhaust holes 5 reserved on the smoke exhaust branch pipes 4, and the purpose of timely smoke exhaust is achieved; the core smoke exhaust pipe 2 and the outer steel pipe 1 play a role in restraining the interlayer concrete 7, so that the compressive strength of the steel pipes is improved, the premature local buckling of the steel pipes is delayed, and the full performance of steel performance is ensured; on one hand, the thermoplastic plug 6 is rapidly melted to play a smoke exhaust function in a fire disaster, and on the other hand, when concrete is poured, slurry enters the smoke exhaust branch pipe 4 and the core smoke exhaust pipe 2 to influence the smoke exhaust function.
The smoke dust exhausting device can timely exhaust smoke dust in a fire disaster, improve the fire rescue difficulty, simultaneously improve the exposure condition of the traditional smoke exhausting device and the condition of large self weight of components, fully utilize the internal space occupancy rate, and have the advantages of reasonable structure, strong integrity, rigidity and bearing capacity, low cost and strong practicability.
Drawings
Fig. 1 is a schematic elevation view of the present invention.
Fig. 2 is a longitudinal sectional view of the present invention.
Fig. 3 is a schematic cross-sectional view of the present invention.
Figure 4 is a schematic view of the assembly of the smoke exhaust branch 4 with the thermoplastic plug 6 of the present invention.
In the figure: 1. an outer steel tube; 2. a core smoke exhaust pipe; 3. a support flange plate; 4. a smoke exhaust branch pipe; 5. a smoke vent; 6. a thermoplastic plug; 7. and (4) interlayer concrete.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Referring to fig. 1 to 4, a steel core concrete column that can be used to discharge fume, including outer steel pipe 1, 1 inside centre of outer steel pipe is provided with the core and discharges fume tub 2, and the core is discharged fume and is connected with polylith support flange board 3 between tub 2 and the outer steel pipe 1, and parallel arrangement has a plurality of branch pipes 4 of discharging fume on the support flange board 3, and 4 one ends of branch pipes 4 of discharging fume are linked together with core discharge fume tub 2, all are equipped with a plurality of exhaust holes 5 on branch pipe 4 of discharging fume and the core discharge fume tub 2 pipe wall, are provided with thermoplasticity stopper 6 in the exhaust hole 5, and sandwich concrete 7 fills in the space between outer steel pipe 1 and core discharge fume tub 2.
The height of the outer steel pipe 1, the height of the core smoke exhaust pipe 2, the height of the support flange plate 3 are the same as the height of the floor.
The number of the plurality of support flange plates 3 is at least two, so that the bearing capacity of the steel pipe is improved.
The plurality of support flange plates 3 are radially and evenly distributed between the core smoke exhaust pipe 2 and the outer steel pipe 1.
The outer steel pipe 1, the core smoke exhaust pipe 2, the smoke exhaust branch pipes 4 and the support flange plates 3 are all made of hot-strength steel and have the thickness of 6-10 mm.
The standard compressive strength of the interlayer concrete 7 is 30-100 Mpa, so that the premature local buckling of the steel pipe is delayed, and the full play of the steel performance is ensured.
The melting point of the thermoplastic plug 6 is 350-500 ℃, and the thermoplastic plug can be rapidly melted to play a smoke exhaust function in case of fire.
The working principle of the invention is as follows:
the method comprises the steps of prefabricating an outer steel tube 1 in a factory, erecting the outer steel tube 1 on site, plugging a thermoplastic plug 6 into a smoke exhaust hole 5 reserved in a smoke exhaust branch pipe 4, welding the thermoplastic plug to a support flange plate 3, welding the assembled support flange plate 3 to a core smoke exhaust pipe 2 to form a middle core part, placing the middle core part in the outer steel tube 1 erected in advance, and pouring concrete between the outer steel tube 1 and the core smoke exhaust pipe 2 to form the integral steel tube concrete column with the smoke exhaust function.
In case of fire, the thermoplastic plug 6 in the smoke vent 5 is firstly melted at high temperature, and concrete smoke dust enters the core smoke vent 2 through the smoke vent 5 and the smoke exhaust branch pipe 4, so that the smoke exhaust function is achieved.
Claims (7)
1. The utility model provides a can be used to steel core concrete column of discharging fume, includes outer steel pipe (1), its characterized in that: outer steel pipe (1) inside centre is provided with the core and discharges fume tub (2), the core is discharged fume and is connected with polylith support flange board (3) between tub (2) and outer steel pipe (1), parallel arrangement has a plurality of branch pipes (4) of discharging fume on support flange board (3), branch pipe (4) one end of discharging fume is discharged fume tub (2) with the core and is linked together, it all is equipped with a plurality of exhaust holes (5) on tub (2) pipe wall to discharge fume branch pipe (4) and core, be provided with thermoplasticity stopper (6) in exhaust holes (5), sandwich concrete (7) are filled in the space between tub (2) of discharging fume of outer steel pipe (1) and core.
2. The steel tube concrete column for smoke exhaust according to claim 1, wherein: the outer steel pipe (1), the core smoke exhaust pipe (2) and the support flange plate (3) are equal in height and consistent with the height of the floor.
3. The steel tube concrete column for smoke exhaust according to claim 1, wherein: the number of the support flange plates (3) is at least two.
4. The steel tube concrete column for smoke exhaust according to claim 1, wherein: the support flange plates (3) are radially and evenly distributed between the core smoke exhaust pipe (2) and the outer steel pipe (1).
5. The steel tube concrete column for smoke exhaust according to claim 1, wherein: the outer steel pipe (1), the core smoke exhaust pipe (2), the smoke exhaust branch pipe (4) and the support flange plate (3) are all made of hot-strength steel and have the thickness of 6-10 mm.
6. The steel tube concrete column for smoke exhaust according to claim 1, wherein: the standard compression strength of the interlayer concrete (7) is 30-100 Mpa.
7. The steel tube concrete column for smoke exhaust according to claim 1, wherein: the melting point of the thermoplastic plug (6) is 350-500 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110477047.7A CN113202231A (en) | 2021-04-29 | 2021-04-29 | Concrete-filled steel tubular column capable of being used for smoke exhaust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110477047.7A CN113202231A (en) | 2021-04-29 | 2021-04-29 | Concrete-filled steel tubular column capable of being used for smoke exhaust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113202231A true CN113202231A (en) | 2021-08-03 |
Family
ID=77027753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110477047.7A Pending CN113202231A (en) | 2021-04-29 | 2021-04-29 | Concrete-filled steel tubular column capable of being used for smoke exhaust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113202231A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204626779U (en) * | 2015-02-12 | 2015-09-09 | 天津炬实科技发展有限公司 | A kind of rafractory concrete steel tubular structure |
| CN107489259A (en) * | 2017-08-25 | 2017-12-19 | 广州市彩蝶节能技术有限公司 | Exhaust duct of liner thin metallic tubd and preparation method thereof |
| US20190172149A1 (en) * | 2017-12-02 | 2019-06-06 | M-Fire Suppression, Inc. | System, network and methods for estimating and recording quantities of carbon securely stored in class-a fire-protected wood-framed and mass-timber buildings on construction job-sites, and class-a fire-protected wood-framed and mass timber components in factory environments |
-
2021
- 2021-04-29 CN CN202110477047.7A patent/CN113202231A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204626779U (en) * | 2015-02-12 | 2015-09-09 | 天津炬实科技发展有限公司 | A kind of rafractory concrete steel tubular structure |
| CN107489259A (en) * | 2017-08-25 | 2017-12-19 | 广州市彩蝶节能技术有限公司 | Exhaust duct of liner thin metallic tubd and preparation method thereof |
| US20190172149A1 (en) * | 2017-12-02 | 2019-06-06 | M-Fire Suppression, Inc. | System, network and methods for estimating and recording quantities of carbon securely stored in class-a fire-protected wood-framed and mass-timber buildings on construction job-sites, and class-a fire-protected wood-framed and mass timber components in factory environments |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210803 |
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| WD01 | Invention patent application deemed withdrawn after publication |